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Liquid compass
Bowl: Brass painted black. Glazed top and bottom. Fixed prism sight. Two expansion chambers on outside. Set in double gimbals. White on inside with black lubber spike below sight.
Card: Mica. White with black markings graduated to quarter points and 0 - 90 in degrees quadrantally on inner and outer scales. Domed float at centre. Diameter 5" (12.75 cm)
Needle: Two needles set in tubes which are attached to float.
Pivot: Unsighted.
Sight: Has a movable prism inside.
O.A. Height 6" (15.2 cm)
Card: Mica. White with black markings graduated to quarter points and 0 - 90 in degrees quadrantally on inner and outer scales. Domed float at centre. Diameter 5" (12.75 cm)
Needle: Two needles set in tubes which are attached to float.
Pivot: Unsighted.
Sight: Has a movable prism inside.
O.A. Height 6" (15.2 cm)
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Object Details
| ID: | ACO0167 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Captain Chetwynd; Kelvin & James White Ltd |
| Date made: | circa 1909 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 152 mm; Diameter: 280 mm |